16143131 has 2 divisors, whose sum is σ = 16143132. Its totient is φ = 16143130.

The previous prime is 16143119. The next prime is 16143139. The reversal of 16143131 is 13134161.

It is a strong prime.

It is an emirp because it is prime and its reverse (13134161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16143131 - 2¹⁰ = 16142107 is a prime.

It is a super-2 number, since 2×16143131² = 521201356966322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16143139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071565 + 8071566.

It is an arithmetic number, because the mean of its divisors is an integer number (8071566).

Almost surely, 2^16143131 is an apocalyptic number.

16143131 is a deficient number, since it is larger than the sum of its proper divisors (1).

16143131 is an equidigital number, since it uses as much as digits as its factorization.

16143131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 16143131 is about 4017.8515403136. The cubic root of 16143131 is about 252.7333711453.

Adding to 16143131 its reverse (13134161), we get a palindrome (29277292).

The spelling of 16143131 in words is "sixteen million, one hundred forty-three thousand, one hundred thirty-one".